Hi all,
I am looking for some gpio pins which are not used by the v1.5 ossc as per:
https://www.niksula.hut.fi/~mhiienka/ossc/diy-v1.5/ossc_v1.5-diy_schematic.pdf
Using the Quartus Prime software, specifically the Pin Planner I created a pin finder for 3.3v Assignment == Unassigned, which to me is exactly what I am looking for. It suggests the following pins but the schematic pdf above makes me think they are being used? Am I reading the schematic wrong?

The schematic has labels next to the red arrows and then inside the chip blue pin writing….not sure if the significance of the labels:
6 – ASDO DATA1
8 – nCSO FLASH_nCE
12 – DCLK DCLK
13 – DATA0 DATA0
24 – CLK2
126 – CLK8
Am I free to use any of those pins above?